Cell Generation Time

Bacteria are amazingly complex, even though each is comprised of only a single cell. Bacteria make up about 95 percent of all the...

Influent Wastewater Characteristics

This post will provide data/tables to give you a starting point when it comes to evaluating influent wastewater characteristics in the...

Introduction Hydrogen peroxide can be used to increase the dissolved oxygen (DO) concentration in an aerobic bioreactor, often referred...

I get asked every now and then about books I think are best for learning more about wastewater treatment. There are many, many excellent...

Sep 29, 20161 min read

Informative EPA Fact Sheets The United States Environmental Protection Agency (EPA) does an excellent job of assembling and posting...

Sep 29, 20161 min read

Wastewater Standards These well-known and reliable wastewater standards have changed slowly over the years, getting updates as needed to...

Sep 28, 20162 min read

Adenosine Triphosphate (ATP) Testing ATP testing is an advanced analysis for thoroughly evaluating a biological treatment system. Because...

Sep 26, 20169 min read

Wastewater Temperature in the Bioreactor Operators know that when the temperature of the wastewater entering the bioreactor is too high,...

Sep 5, 20161 min read

Activated Sludge Design Parameters This is a handy chart from the well-known Metcalf & Eddy handbook (Metcalf & Eddy. Wastewater...